DAY & AGE by THE KILLERS has sold 2,286,000 copies in 21 countries. The album sold best in United Kingdom (1,200,000 copies), United States (500,000 copies) and Germany (200,000 copies).
DAY & AGE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
|  Australia | 70,000 | 1x Platinum | NOVEMBER 2008 |  Australia Sales: 70,000 Certification / note: 1x Platinum Certification Date / sales as of: NOVEMBER 2008 | 
|  Austria | 10,000 | 1x Gold | 29 April, 2009 |  Austria Sales: 10,000 Certification / note: 1x Gold Certification Date / sales as of: 29 April, 2009 | 
|  Canada | 80,000 | 1x Platinum | 2009 |  Canada Sales: 80,000 Certification / note: 1x Platinum Certification Date / sales as of: 2009 | 
|  Denmark | 15,000 | 1x Gold | 2009 |  Denmark Sales: 15,000 Certification / note: 1x Gold Certification Date / sales as of: 2009 | 
|  Germany | 200,000 | 1x Platinum | 2012 |  Germany Sales: 200,000 Certification / note: 1x Platinum Certification Date / sales as of: 2012 | 
|  Grecce | 3,000 | 1x Gold |  Grecce Sales: 3,000 Certification / note: 1x Gold Certification Date / sales as of:  | |
|  Ireland | 60,000 | 4x Platinum | 2008 |  Ireland Sales: 60,000 Certification / note: 4x Platinum Certification Date / sales as of: 2008 | 
|  Mexico | 40,000 | 1x Gold | 25 February, 2009 |  Mexico Sales: 40,000 Certification / note: 1x Gold Certification Date / sales as of: 25 February, 2009 | 
|  New Zealand | 15,000 | 1x Platinum |  New Zealand Sales: 15,000 Certification / note: 1x Platinum Certification Date / sales as of:  | |
|  Norway | 15,000 | 1x Gold | 2009 |  Norway Sales: 15,000 Certification / note: 1x Gold Certification Date / sales as of: 2009 | 
|  Spain | 40,000 | 1x Gold | 2009 |  Spain Sales: 40,000 Certification / note: 1x Gold Certification Date / sales as of: 2009 | 
|  Sweden | 20,000 | 1x Gold | 12 February,2009 |  Sweden Sales: 20,000 Certification / note: 1x Gold Certification Date / sales as of: 12 February,2009 | 
|  Switzerland | 15,000 | 1x Gold | 2009 |  Switzerland Sales: 15,000 Certification / note: 1x Gold Certification Date / sales as of: 2009 | 
|  United Kingdom | 1,200,000 | 4x Platinum | 12 February,2010 |  United Kingdom Sales: 1,200,000 Certification / note: 4x Platinum Certification Date / sales as of: 12 February,2010 | 
|  United States | 500,000 | 1x Gold | 27 January, 2009 |  United States Sales: 500,000 Certification / note: 1x Gold Certification Date / sales as of: 27 January, 2009 | 
|  Gulf States | 3,000 | 1x Gold | 2010 |  Gulf States Sales: 3,000 Certification / note: 1x Gold Certification Date / sales as of: 2010 | 
|  Europe (IFPI) | 1,000,000 | 1x Platinum | 2008 |  Europe (IFPI) Sales: 1,000,000 Certification / note: 1x Platinum Certification Date / sales as of: 2008 | 
| Total sales | 2,286,000 | (in 21 countries) | Total Sales: 2,286,000 (in 21 countries) | 
Year-end chart performance for DAY & AGE
| Chart 2008 | Rank | Sales | 
|  Australian Albums (ARIA) | 33 | >70,000 | 
|  Irish Albums (IRMA) | 16 | |
|  Mexican Albums (Top 100 Mexico) | 58 | |
|  New Zealand Albums (RMNZ) | 37 | |
|  Norwegian Albums (VG-Lista) | 46 | |
|  UK Albums (Charts Plus) | 7 | 703,213 | 
|  Worldwide Albums (IFPI Global Music Report) | 28 | |
| Chart 2009 | Rank | Sales | 
|  Australian Albums (ARIA) | 70 | |
|  Austrian Albums (Ö3 Austria) | 64 | |
|  Belgian Albums (Ultratop Flanders) | 92 | |
|  Canadian Albums (Billboard) | 27 | |
|  Danish Albums (Hitlisten) | 84 | |
|  German Albums (Offizielle Top 100) | 81 | |
|  Mexican Albums (Top 100 Mexico) | 64 | |
|  Swiss Albums (Schweizer Hitparade) | 72 | |
|  UK Albums (Charts Plus) | 29 | |
|  US Albums (Billboard 200) | 44 | |
|  US Albums (Soundscan) | 143 | 273,931 | 
| Chart 2010 | Rank | Sales | 
|  UK Albums (Charts Plus) | 171 | 

